123rd General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Exhibition Hall 2
Time 4월 19일 (금요일) 11:00~12:30
Code POLY.P-23
Subject Thermally Crosslinkable Hole Transport Polymer for Realizing High-Performing Thermally Activated Delayed Fluorescence OLEDs via Solution Processing
Authors Cheol Hun Jeong, Jiwon Yoon, Hyung Jong Kim, Su Hong Park, Chae Yeong Kim, Nayeon Kwon, Ji Hye Lee, Min Ju Cho, Dong Hoon Choi*
Department of Chemistry, Korea University, Korea
Abstract Recently, solution processable organic light-emitting diodes (OLED) have emerged as alternative to vacuum processed OLEDs due to the low-cost, large area, and flexible display applications. However, it is still difficult to prepare all the layers in multi-layered OLEDs via solution processing since bottom layer can be dissolved during the deposition of the upper layer. As a solution, crosslinking system has been considered as one of the most effective methods to make insoluble from many common organic solvents without any complicated fabrications. A new side-chain hole transport polymer, X-TPACz which contains thermally crosslinkable side chain unit, was synthesized via facile addition polymerization. Using the UV-vis absorption spectroscopy, curing conditions were optimized by investigation in terms of curing temperature and curing time. Using X-TPACz as hole transport layer, high external quantum efficiency with low turn on voltage was obtained in application of solution processable OLED.
E-mail suninreds@korea.ac.kr